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Science 30 November 1990:
Vol. 250. no. 4985, pp. 1241 - 1244
DOI: 10.1126/science.250.4985.1241
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Articles
Surface Displacements in the 1906 San Francisco and 1989 Loma Prieta Earthquakes
Paul Segall 1 and
Mike Lisowski 2
1 Geophysics Department, Stanford University, Stanford, CA 74305, U.S. Geological Survey, Menlo Park, CA 94025
2 U.S. Geological Survey, Menlo Park, CA 94025
The horizontal displacements accompanying the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake are computed from geodetic survey measurements. The 1906 earthquake displacement field is entirely consistent with right-lateral strike slip on the San Andreas fault. In contrast, the 1989 Loma Prieta earthquake exhibited subequal components of strike slip and reverse faulting. This result, together with other seismic and geologic data, may indicate that the two earthquakes occurred on two different fault planes.
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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- A reappraisal of large earthquake scaling.
- C. H. Scholz (1994)
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- Source study of the 1906 San Francisco earthquake.
- D. J. WALD, H. KANAMORI, D. V. HELMBERGER, and T. H. HEATON (1993)
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82, 1802-1820
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- Re-evaluation of 1906 surface faulting, geomorphic expression, and seismic hazard along the San Andreas fault in the southern Santa Cruz Mountains.
- C. S. PRENTICE and D. P. SCHWARTZ (1991)
Bulletin of the Seismological Society of America
81, 1424-1479
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- Off-fault ground ruptures in the Santa Cruz Mountains, California: Ridge-top spreading versus tectonic extension during the 1989 Loma Prieta earthquake.
- D. J. PONTI and R. E. WELLS (1991)
Bulletin of the Seismological Society of America
81, 1480-1510
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- Near-source modeling of the Loma Prieta earthquake: Evidence for heterogeneous slip and implications for earthquake hazard.
- G. C. BEROZA (1991)
Bulletin of the Seismological Society of America
81, 1603-1621
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- Horizontal deformation associated with the Loma Prieta earthquake.
- R. A. SNAY, H. C. NEUGEBAUER, and W. H. PRESCOTT (1991)
Bulletin of the Seismological Society of America
81, 1647-1659
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- Long-term uplift of the Santa Cruz coastline in response to repeated earthquakes along the San Andreas fault.
- G. VALENSISE and S. N. WARD (1991)
Bulletin of the Seismological Society of America
81, 1694-1704
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- The 1989 Loma Prieta earthquake and its effects: Introduction to the special issue.
- T. C. HANKS and H. KRAWINKLER (1991)
Bulletin of the Seismological Society of America
81, 1415-1423
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